How can spam advertisements on mobile phones be isolated forever?

Method 1: record every time you answer the phone. If you receive phone harassment, record the phone call and complain to the procuratorate of the industrial and commercial bureau. People you don't know call you to harass advertisements, which belongs to the crime of illegally leaking information. If you report it, he will compensate you.

Method 2: The mobile phone sets harassment interception.

Method 3: Change the phone number, which is the most effective method. Be careful not to bind any business after changing the new number.